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   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "replacements.h"
  25 #include "target.h"
  26 #include "target_request.h"
  27
  28 #include "log.h"
  29 #include "configuration.h"
  30 #include "binarybuffer.h"
  31 #include "jtag.h"
  32
  33 #include <string.h>
  34 #include <stdlib.h>
  35 #include <inttypes.h>
  36
  37 #include <sys/types.h>
  38 #include <sys/stat.h>
  39 #include <unistd.h>
  40 #include <errno.h>
  41
  42 #include <sys/time.h>
  43 #include <time.h>
  44
  45 #include <time_support.h>
  46
  47 #include <fileio.h>
  48 #include <image.h>
  49
  50 int cli_target_callback_event_handler(struct target_s *target, enum target_event event, void *priv);
  51
  52
  53 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  54 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  55 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  56
  57 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  58 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  59 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  60
  61 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  62 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  63 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  64 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  65 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  66 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  67 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  68 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  69 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  70 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  71 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  72 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  73 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  74 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  75 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  76 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  77 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  78 int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc);
  79
  80 /* targets
  81  */
  82 extern target_type_t arm7tdmi_target;
  83 extern target_type_t arm720t_target;
  84 extern target_type_t arm9tdmi_target;
  85 extern target_type_t arm920t_target;
  86 extern target_type_t arm966e_target;
  87 extern target_type_t arm926ejs_target;
  88 extern target_type_t feroceon_target;
  89 extern target_type_t xscale_target;
  90 extern target_type_t cortexm3_target;
  91 extern target_type_t arm11_target;
  92
  93 target_type_t *target_types[] =
  94 {
  95         &arm7tdmi_target,
  96         &arm9tdmi_target,
  97         &arm920t_target,
  98         &arm720t_target,
  99         &arm966e_target,
 100         &arm926ejs_target,
 101         &feroceon_target,
 102         &xscale_target,
 103         &cortexm3_target,
 104         &arm11_target,
 105         NULL,
 106 };
 107
 108 target_t *targets = NULL;
 109 target_event_callback_t *target_event_callbacks = NULL;
 110 target_timer_callback_t *target_timer_callbacks = NULL;
 111
 112 char *target_state_strings[] =
 113 {
 114         "unknown",
 115         "running",
 116         "halted",
 117         "reset",
 118         "debug_running",
 119 };
 120
 121 char *target_debug_reason_strings[] =
 122 {
 123         "debug request", "breakpoint", "watchpoint",
 124         "watchpoint and breakpoint", "single step",
 125         "target not halted", "undefined"
 126 };
 127
 128 char *target_endianess_strings[] =
 129 {
 130         "big endian",
 131         "little endian",
 132 };
 133
 134 enum daemon_startup_mode startup_mode = DAEMON_ATTACH;
 135
 136 static int target_continous_poll = 1;
 137
 138 /* read a u32 from a buffer in target memory endianness */
 139 u32 target_buffer_get_u32(target_t *target, u8 *buffer)
 140 {
 141         if (target->endianness == TARGET_LITTLE_ENDIAN)
 142                 return le_to_h_u32(buffer);
 143         else
 144                 return be_to_h_u32(buffer);
 145 }
 146
 147 /* read a u16 from a buffer in target memory endianness */
 148 u16 target_buffer_get_u16(target_t *target, u8 *buffer)
 149 {
 150         if (target->endianness == TARGET_LITTLE_ENDIAN)
 151                 return le_to_h_u16(buffer);
 152         else
 153                 return be_to_h_u16(buffer);
 154 }
 155
 156 /* write a u32 to a buffer in target memory endianness */
 157 void target_buffer_set_u32(target_t *target, u8 *buffer, u32 value)
 158 {
 159         if (target->endianness == TARGET_LITTLE_ENDIAN)
 160                 h_u32_to_le(buffer, value);
 161         else
 162                 h_u32_to_be(buffer, value);
 163 }
 164
 165 /* write a u16 to a buffer in target memory endianness */
 166 void target_buffer_set_u16(target_t *target, u8 *buffer, u16 value)
 167 {
 168         if (target->endianness == TARGET_LITTLE_ENDIAN)
 169                 h_u16_to_le(buffer, value);
 170         else
 171                 h_u16_to_be(buffer, value);
 172 }
 173
 174 /* returns a pointer to the n-th configured target */
 175 target_t* get_target_by_num(int num)
 176 {
 177         target_t *target = targets;
 178         int i = 0;
 179
 180         while (target)
 181         {
 182                 if (num == i)
 183                         return target;
 184                 target = target->next;
 185                 i++;
 186         }
 187
 188         return NULL;
 189 }
 190
 191 int get_num_by_target(target_t *query_target)
 192 {
 193         target_t *target = targets;
 194         int i = 0;
 195
 196         while (target)
 197         {
 198                 if (target == query_target)
 199                         return i;
 200                 target = target->next;
 201                 i++;
 202         }
 203
 204         return -1;
 205 }
 206
 207 target_t* get_current_target(command_context_t *cmd_ctx)
 208 {
 209         target_t *target = get_target_by_num(cmd_ctx->current_target);
 210
 211         if (target == NULL)
 212         {
 213                 ERROR("BUG: current_target out of bounds");
 214                 exit(-1);
 215         }
 216
 217         return target;
 218 }
 219
 220 /* Process target initialization, when target entered debug out of reset
 221  * the handler is unregistered at the end of this function, so it's only called once
 222  */
 223 int target_init_handler(struct target_s *target, enum target_event event, void *priv)
 224 {
 225         FILE *script;
 226         struct command_context_s *cmd_ctx = priv;
 227
 228         if ((event == TARGET_EVENT_HALTED) && (target->reset_script))
 229         {
 230                 target_unregister_event_callback(target_init_handler, priv);
 231
 232                 script = open_file_from_path(target->reset_script, "r");
 233                 if (!script)
 234                 {
 235                         ERROR("couldn't open script file %s", target->reset_script);
 236                                 return ERROR_OK;
 237                 }
 238
 239                 INFO("executing reset script '%s'", target->reset_script);
 240                 command_run_file(cmd_ctx, script, COMMAND_EXEC);
 241                 fclose(script);
 242
 243                 jtag_execute_queue();
 244         }
 245
 246         return ERROR_OK;
 247 }
 248
 249 int target_run_and_halt_handler(void *priv)
 250 {
 251         target_t *target = priv;
 252
 253         target->type->halt(target);
 254
 255         return ERROR_OK;
 256 }
 257
 258 int target_process_reset(struct command_context_s *cmd_ctx)
 259 {
 260         int retval = ERROR_OK;
 261         target_t *target;
 262         struct timeval timeout, now;
 263
 264         /* prepare reset_halt where necessary */
 265         target = targets;
 266         while (target)
 267         {
 268                 if (jtag_reset_config & RESET_SRST_PULLS_TRST)
 269                 {
 270                         switch (target->reset_mode)
 271                         {
 272                                 case RESET_HALT:
 273                                         command_print(cmd_ctx, "nSRST pulls nTRST, falling back to \"reset run_and_halt\"");
 274                                         target->reset_mode = RESET_RUN_AND_HALT;
 275                                         break;
 276                                 case RESET_INIT:
 277                                         command_print(cmd_ctx, "nSRST pulls nTRST, falling back to \"reset run_and_init\"");
 278                                         target->reset_mode = RESET_RUN_AND_INIT;
 279                                         break;
 280                                 default:
 281                                         break;
 282                         }
 283                 }
 284                 switch (target->reset_mode)
 285                 {
 286                         case RESET_HALT:
 287                         case RESET_INIT:
 288                                 target->type->prepare_reset_halt(target);
 289                                 break;
 290                         default:
 291                                 break;
 292                 }
 293                 target = target->next;
 294         }
 295
 296         target = targets;
 297         while (target)
 298         {
 299                 target->type->assert_reset(target);
 300                 target = target->next;
 301         }
 302         jtag_execute_queue();
 303
 304         /* request target halt if necessary, and schedule further action */
 305         target = targets;
 306         while (target)
 307         {
 308                 switch (target->reset_mode)
 309                 {
 310                         case RESET_RUN:
 311                                 /* nothing to do if target just wants to be run */
 312                                 break;
 313                         case RESET_RUN_AND_HALT:
 314                                 /* schedule halt */
 315                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 316                                 break;
 317                         case RESET_RUN_AND_INIT:
 318                                 /* schedule halt */
 319                                 target_register_timer_callback(target_run_and_halt_handler, target->run_and_halt_time, 0, target);
 320                                 target_register_event_callback(target_init_handler, cmd_ctx);
 321                                 break;
 322                         case RESET_HALT:
 323                                 target->type->halt(target);
 324                                 break;
 325                         case RESET_INIT:
 326                                 target->type->halt(target);
 327                                 target_register_event_callback(target_init_handler, cmd_ctx);
 328                                 break;
 329                         default:
 330                                 ERROR("BUG: unknown target->reset_mode");
 331                 }
 332                 target = target->next;
 333         }
 334
 335         target = targets;
 336         while (target)
 337         {
 338                 target->type->deassert_reset(target);
 339                 target = target->next;
 340         }
 341         jtag_execute_queue();
 342
 343         /* Wait for reset to complete, maximum 5 seconds. */
 344         gettimeofday(&timeout, NULL);
 345         timeval_add_time(&timeout, 5, 0);
 346         for(;;)
 347         {
 348                 gettimeofday(&now, NULL);
 349
 350                 target_call_timer_callbacks();
 351
 352                 target = targets;
 353                 while (target)
 354                 {
 355                         target->type->poll(target);
 356                         if ((target->reset_mode == RESET_RUN_AND_INIT) || (target->reset_mode == RESET_RUN_AND_HALT))
 357                         {
 358                                 if (target->state != TARGET_HALTED)
 359                                 {
 360                                         if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
 361                                         {
 362                                                 command_print(cmd_ctx, "Timed out waiting for reset");
 363                                                 goto done;
 364                                         }
 365                                         /* this will send alive messages on e.g. GDB remote protocol. */
 366                                         usleep(500*1000);
 367                                         USER_N("%s", ""); /* avoid warning about zero length formatting message*/
 368                                         goto again;
 369                                 }
 370                         }
 371                         target = target->next;
 372                 }
 373                 /* All targets we're waiting for are halted */
 374                 break;
 375
 376                 again:;
 377         }
 378         done:
 379
 380
 381         /* We want any events to be processed before the prompt */
 382         target_call_timer_callbacks();
 383
 384         return retval;
 385 }
 386
 387 static int default_virt2phys(struct target_s *target, u32 virtual, u32 *physical)
 388 {
 389         *physical = virtual;
 390         return ERROR_OK;
 391 }
 392
 393 static int default_mmu(struct target_s *target, int *enabled)
 394 {
 395         *enabled = 0;
 396         return ERROR_OK;
 397 }
 398
 399 int target_init(struct command_context_s *cmd_ctx)
 400 {
 401         target_t *target = targets;
 402
 403         while (target)
 404         {
 405                 if (target->type->init_target(cmd_ctx, target) != ERROR_OK)
 406                 {
 407                         ERROR("target '%s' init failed", target->type->name);
 408                         exit(-1);
 409                 }
 410
 411                 /* Set up default functions if none are provided by target */
 412                 if (target->type->virt2phys == NULL)
 413                 {
 414                         target->type->virt2phys = default_virt2phys;
 415                 }
 416                 if (target->type->mmu == NULL)
 417                 {
 418                         target->type->mmu = default_mmu;
 419                 }
 420                 target = target->next;
 421         }
 422
 423         if (targets)
 424         {
 425                 target_register_user_commands(cmd_ctx);
 426                 target_register_timer_callback(handle_target, 100, 1, NULL);
 427         }
 428
 429         return ERROR_OK;
 430 }
 431
 432 int target_init_reset(struct command_context_s *cmd_ctx)
 433 {
 434         if (startup_mode == DAEMON_RESET)
 435                 target_process_reset(cmd_ctx);
 436
 437         return ERROR_OK;
 438 }
 439
 440 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 441 {
 442         target_event_callback_t **callbacks_p = &target_event_callbacks;
 443
 444         if (callback == NULL)
 445         {
 446                 return ERROR_INVALID_ARGUMENTS;
 447         }
 448
 449         if (*callbacks_p)
 450         {
 451                 while ((*callbacks_p)->next)
 452                         callbacks_p = &((*callbacks_p)->next);
 453                 callbacks_p = &((*callbacks_p)->next);
 454         }
 455
 456         (*callbacks_p) = malloc(sizeof(target_event_callback_t));
 457         (*callbacks_p)->callback = callback;
 458         (*callbacks_p)->priv = priv;
 459         (*callbacks_p)->next = NULL;
 460
 461         return ERROR_OK;
 462 }
 463
 464 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 465 {
 466         target_timer_callback_t **callbacks_p = &target_timer_callbacks;
 467         struct timeval now;
 468
 469         if (callback == NULL)
 470         {
 471                 return ERROR_INVALID_ARGUMENTS;
 472         }
 473
 474         if (*callbacks_p)
 475         {
 476                 while ((*callbacks_p)->next)
 477                         callbacks_p = &((*callbacks_p)->next);
 478                 callbacks_p = &((*callbacks_p)->next);
 479         }
 480
 481         (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
 482         (*callbacks_p)->callback = callback;
 483         (*callbacks_p)->periodic = periodic;
 484         (*callbacks_p)->time_ms = time_ms;
 485
 486         gettimeofday(&now, NULL);
 487         (*callbacks_p)->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 488         time_ms -= (time_ms % 1000);
 489         (*callbacks_p)->when.tv_sec = now.tv_sec + (time_ms / 1000);
 490         if ((*callbacks_p)->when.tv_usec > 1000000)
 491         {
 492                 (*callbacks_p)->when.tv_usec = (*callbacks_p)->when.tv_usec - 1000000;
 493                 (*callbacks_p)->when.tv_sec += 1;
 494         }
 495
 496         (*callbacks_p)->priv = priv;
 497         (*callbacks_p)->next = NULL;
 498
 499         return ERROR_OK;
 500 }
 501
 502 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 503 {
 504         target_event_callback_t **p = &target_event_callbacks;
 505         target_event_callback_t *c = target_event_callbacks;
 506
 507         if (callback == NULL)
 508         {
 509                 return ERROR_INVALID_ARGUMENTS;
 510         }
 511
 512         while (c)
 513         {
 514                 target_event_callback_t *next = c->next;
 515                 if ((c->callback == callback) && (c->priv == priv))
 516                 {
 517                         *p = next;
 518                         free(c);
 519                         return ERROR_OK;
 520                 }
 521                 else
 522                         p = &(c->next);
 523                 c = next;
 524         }
 525
 526         return ERROR_OK;
 527 }
 528
 529 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 530 {
 531         target_timer_callback_t **p = &target_timer_callbacks;
 532         target_timer_callback_t *c = target_timer_callbacks;
 533
 534         if (callback == NULL)
 535         {
 536                 return ERROR_INVALID_ARGUMENTS;
 537         }
 538
 539         while (c)
 540         {
 541                 target_timer_callback_t *next = c->next;
 542                 if ((c->callback == callback) && (c->priv == priv))
 543                 {
 544                         *p = next;
 545                         free(c);
 546                         return ERROR_OK;
 547                 }
 548                 else
 549                         p = &(c->next);
 550                 c = next;
 551         }
 552
 553         return ERROR_OK;
 554 }
 555
 556 int target_call_event_callbacks(target_t *target, enum target_event event)
 557 {
 558         target_event_callback_t *callback = target_event_callbacks;
 559         target_event_callback_t *next_callback;
 560
 561         DEBUG("target event %i", event);
 562
 563         while (callback)
 564         {
 565                 next_callback = callback->next;
 566                 callback->callback(target, event, callback->priv);
 567                 callback = next_callback;
 568         }
 569
 570         return ERROR_OK;
 571 }
 572
 573 int target_call_timer_callbacks()
 574 {
 575         target_timer_callback_t *callback = target_timer_callbacks;
 576         target_timer_callback_t *next_callback;
 577         struct timeval now;
 578
 579         gettimeofday(&now, NULL);
 580
 581         while (callback)
 582         {
 583                 next_callback = callback->next;
 584
 585                 if (((now.tv_sec >= callback->when.tv_sec) && (now.tv_usec >= callback->when.tv_usec))
 586                         || (now.tv_sec > callback->when.tv_sec))
 587                 {
 588                         callback->callback(callback->priv);
 589                         if (callback->periodic)
 590                         {
 591                                 int time_ms = callback->time_ms;
 592                                 callback->when.tv_usec = now.tv_usec + (time_ms % 1000) * 1000;
 593                                 time_ms -= (time_ms % 1000);
 594                                 callback->when.tv_sec = now.tv_sec + time_ms / 1000;
 595                                 if (callback->when.tv_usec > 1000000)
 596                                 {
 597                                         callback->when.tv_usec = callback->when.tv_usec - 1000000;
 598                                         callback->when.tv_sec += 1;
 599                                 }
 600                         }
 601                         else
 602                                 target_unregister_timer_callback(callback->callback, callback->priv);
 603                 }
 604
 605                 callback = next_callback;
 606         }
 607
 608         return ERROR_OK;
 609 }
 610
 611 int target_alloc_working_area(struct target_s *target, u32 size, working_area_t **area)
 612 {
 613         working_area_t *c = target->working_areas;
 614         working_area_t *new_wa = NULL;
 615
 616         /* Reevaluate working area address based on MMU state*/
 617         if (target->working_areas == NULL)
 618         {
 619                 int retval;
 620                 int enabled;
 621                 retval = target->type->mmu(target, &enabled);
 622                 if (retval != ERROR_OK)
 623                 {
 624                         return retval;
 625                 }
 626                 if (enabled)
 627                 {
 628                         target->working_area = target->working_area_virt;
 629                 }
 630                 else
 631                 {
 632                         target->working_area = target->working_area_phys;
 633                 }
 634         }
 635
 636         /* only allocate multiples of 4 byte */
 637         if (size % 4)
 638         {
 639                 ERROR("BUG: code tried to allocate unaligned number of bytes, padding");
 640                 size = CEIL(size, 4);
 641         }
 642
 643         /* see if there's already a matching working area */
 644         while (c)
 645         {
 646                 if ((c->free) && (c->size == size))
 647                 {
 648                         new_wa = c;
 649                         break;
 650                 }
 651                 c = c->next;
 652         }
 653
 654         /* if not, allocate a new one */
 655         if (!new_wa)
 656         {
 657                 working_area_t **p = &target->working_areas;
 658                 u32 first_free = target->working_area;
 659                 u32 free_size = target->working_area_size;
 660
 661                 DEBUG("allocating new working area");
 662
 663                 c = target->working_areas;
 664                 while (c)
 665                 {
 666                         first_free += c->size;
 667                         free_size -= c->size;
 668                         p = &c->next;
 669                         c = c->next;
 670                 }
 671
 672                 if (free_size < size)
 673                 {
 674                         WARNING("not enough working area available(requested %d, free %d)", size, free_size);
 675                         return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
 676                 }
 677
 678                 new_wa = malloc(sizeof(working_area_t));
 679                 new_wa->next = NULL;
 680                 new_wa->size = size;
 681                 new_wa->address = first_free;
 682
 683                 if (target->backup_working_area)
 684                 {
 685                         new_wa->backup = malloc(new_wa->size);
 686                         target->type->read_memory(target, new_wa->address, 4, new_wa->size / 4, new_wa->backup);
 687                 }
 688                 else
 689                 {
 690                         new_wa->backup = NULL;
 691                 }
 692
 693                 /* put new entry in list */
 694                 *p = new_wa;
 695         }
 696
 697         /* mark as used, and return the new (reused) area */
 698         new_wa->free = 0;
 699         *area = new_wa;
 700
 701         /* user pointer */
 702         new_wa->user = area;
 703
 704         return ERROR_OK;
 705 }
 706
 707 int target_free_working_area(struct target_s *target, working_area_t *area)
 708 {
 709         if (area->free)
 710                 return ERROR_OK;
 711
 712         if (target->backup_working_area)
 713                 target->type->write_memory(target, area->address, 4, area->size / 4, area->backup);
 714
 715         area->free = 1;
 716
 717         /* mark user pointer invalid */
 718         *area->user = NULL;
 719         area->user = NULL;
 720
 721         return ERROR_OK;
 722 }
 723
 724 int target_free_all_working_areas(struct target_s *target)
 725 {
 726         working_area_t *c = target->working_areas;
 727
 728         while (c)
 729         {
 730                 working_area_t *next = c->next;
 731                 target_free_working_area(target, c);
 732
 733                 if (c->backup)
 734                         free(c->backup);
 735
 736                 free(c);
 737
 738                 c = next;
 739         }
 740
 741         target->working_areas = NULL;
 742
 743         return ERROR_OK;
 744 }
 745
 746 int target_register_commands(struct command_context_s *cmd_ctx)
 747 {
 748         register_command(cmd_ctx, NULL, "target", handle_target_command, COMMAND_CONFIG, NULL);
 749         register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, NULL);
 750         register_command(cmd_ctx, NULL, "daemon_startup", handle_daemon_startup_command, COMMAND_CONFIG, NULL);
 751         register_command(cmd_ctx, NULL, "target_script", handle_target_script_command, COMMAND_CONFIG, NULL);
 752         register_command(cmd_ctx, NULL, "run_and_halt_time", handle_run_and_halt_time_command, COMMAND_CONFIG, NULL);
 753         register_command(cmd_ctx, NULL, "working_area", handle_working_area_command, COMMAND_ANY, "working_area <target#> <address> <size> <'backup'|'nobackup'> [virtual address]");
 754         register_command(cmd_ctx, NULL, "virt2phys", handle_virt2phys_command, COMMAND_ANY, "virt2phys <virtual address>");
 755
 756         return ERROR_OK;
 757 }
 758
 759 int target_arch_state(struct target_s *target)
 760 {
 761         int retval;
 762         if (target==NULL)
 763         {
 764                 USER("No target has been configured");
 765                 return ERROR_OK;
 766         }
 767
 768         USER("target state: %s", target_state_strings[target->state]);
 769
 770         if (target->state!=TARGET_HALTED)
 771                 return ERROR_OK;
 772
 773         retval=target->type->arch_state(target);
 774         return retval;
 775 }
 776
 777 /* Single aligned words are guaranteed to use 16 or 32 bit access
 778  * mode respectively, otherwise data is handled as quickly as
 779  * possible
 780  */
 781 int target_write_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 782 {
 783         int retval;
 784
 785         DEBUG("writing buffer of %i byte at 0x%8.8x", size, address);
 786
 787         if (((address % 2) == 0) && (size == 2))
 788         {
 789                 return target->type->write_memory(target, address, 2, 1, buffer);
 790         }
 791
 792         /* handle unaligned head bytes */
 793         if (address % 4)
 794         {
 795                 int unaligned = 4 - (address % 4);
 796
 797                 if (unaligned > size)
 798                         unaligned = size;
 799
 800                 if ((retval = target->type->write_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 801                         return retval;
 802
 803                 buffer += unaligned;
 804                 address += unaligned;
 805                 size -= unaligned;
 806         }
 807
 808         /* handle aligned words */
 809         if (size >= 4)
 810         {
 811                 int aligned = size - (size % 4);
 812
 813                 /* use bulk writes above a certain limit. This may have to be changed */
 814                 if (aligned > 128)
 815                 {
 816                         if ((retval = target->type->bulk_write_memory(target, address, aligned / 4, buffer)) != ERROR_OK)
 817                                 return retval;
 818                 }
 819                 else
 820                 {
 821                         if ((retval = target->type->write_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 822                                 return retval;
 823                 }
 824
 825                 buffer += aligned;
 826                 address += aligned;
 827                 size -= aligned;
 828         }
 829
 830         /* handle tail writes of less than 4 bytes */
 831         if (size > 0)
 832         {
 833                 if ((retval = target->type->write_memory(target, address, 1, size, buffer)) != ERROR_OK)
 834                         return retval;
 835         }
 836
 837         return ERROR_OK;
 838 }
 839
 840
 841 /* Single aligned words are guaranteed to use 16 or 32 bit access
 842  * mode respectively, otherwise data is handled as quickly as
 843  * possible
 844  */
 845 int target_read_buffer(struct target_s *target, u32 address, u32 size, u8 *buffer)
 846 {
 847         int retval;
 848
 849         DEBUG("reading buffer of %i byte at 0x%8.8x", size, address);
 850
 851         if (((address % 2) == 0) && (size == 2))
 852         {
 853                 return target->type->read_memory(target, address, 2, 1, buffer);
 854         }
 855
 856         /* handle unaligned head bytes */
 857         if (address % 4)
 858         {
 859                 int unaligned = 4 - (address % 4);
 860
 861                 if (unaligned > size)
 862                         unaligned = size;
 863
 864                 if ((retval = target->type->read_memory(target, address, 1, unaligned, buffer)) != ERROR_OK)
 865                         return retval;
 866
 867                 buffer += unaligned;
 868                 address += unaligned;
 869                 size -= unaligned;
 870         }
 871
 872         /* handle aligned words */
 873         if (size >= 4)
 874         {
 875                 int aligned = size - (size % 4);
 876
 877                 if ((retval = target->type->read_memory(target, address, 4, aligned / 4, buffer)) != ERROR_OK)
 878                         return retval;
 879
 880                 buffer += aligned;
 881                 address += aligned;
 882                 size -= aligned;
 883         }
 884
 885         /* handle tail writes of less than 4 bytes */
 886         if (size > 0)
 887         {
 888                 if ((retval = target->type->read_memory(target, address, 1, size, buffer)) != ERROR_OK)
 889                         return retval;
 890         }
 891
 892         return ERROR_OK;
 893 }
 894
 895 int target_checksum_memory(struct target_s *target, u32 address, u32 size, u32* crc)
 896 {
 897         u8 *buffer;
 898         int retval;
 899         int i;
 900         u32 checksum = 0;
 901
 902         if ((retval = target->type->checksum_memory(target, address,
 903                 size, &checksum)) == ERROR_TARGET_RESOURCE_NOT_AVAILABLE)
 904         {
 905                 buffer = malloc(size);
 906                 if (buffer == NULL)
 907                 {
 908                         ERROR("error allocating buffer for section (%d bytes)", size);
 909                         return ERROR_INVALID_ARGUMENTS;
 910                 }
 911                 retval = target_read_buffer(target, address, size, buffer);
 912                 if (retval != ERROR_OK)
 913                 {
 914                         free(buffer);
 915                         return retval;
 916                 }
 917
 918                 /* convert to target endianess */
 919                 for (i = 0; i < (size/sizeof(u32)); i++)
 920                 {
 921                         u32 target_data;
 922                         target_data = target_buffer_get_u32(target, &buffer[i*sizeof(u32)]);
 923                         target_buffer_set_u32(target, &buffer[i*sizeof(u32)], target_data);
 924                 }
 925
 926                 retval = image_calculate_checksum( buffer, size, &checksum );
 927                 free(buffer);
 928         }
 929
 930         *crc = checksum;
 931
 932         return retval;
 933 }
 934
 935 int target_read_u32(struct target_s *target, u32 address, u32 *value)
 936 {
 937         u8 value_buf[4];
 938
 939         int retval = target->type->read_memory(target, address, 4, 1, value_buf);
 940
 941         if (retval == ERROR_OK)
 942         {
 943                 *value = target_buffer_get_u32(target, value_buf);
 944                 DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, *value);
 945         }
 946         else
 947         {
 948                 *value = 0x0;
 949                 DEBUG("address: 0x%8.8x failed", address);
 950         }
 951
 952         return retval;
 953 }
 954
 955 int target_read_u16(struct target_s *target, u32 address, u16 *value)
 956 {
 957         u8 value_buf[2];
 958
 959         int retval = target->type->read_memory(target, address, 2, 1, value_buf);
 960
 961         if (retval == ERROR_OK)
 962         {
 963                 *value = target_buffer_get_u16(target, value_buf);
 964                 DEBUG("address: 0x%8.8x, value: 0x%4.4x", address, *value);
 965         }
 966         else
 967         {
 968                 *value = 0x0;
 969                 DEBUG("address: 0x%8.8x failed", address);
 970         }
 971
 972         return retval;
 973 }
 974
 975 int target_read_u8(struct target_s *target, u32 address, u8 *value)
 976 {
 977         int retval = target->type->read_memory(target, address, 1, 1, value);
 978
 979         if (retval == ERROR_OK)
 980         {
 981                 DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, *value);
 982         }
 983         else
 984         {
 985                 *value = 0x0;
 986                 DEBUG("address: 0x%8.8x failed", address);
 987         }
 988
 989         return retval;
 990 }
 991
 992 int target_write_u32(struct target_s *target, u32 address, u32 value)
 993 {
 994         int retval;
 995         u8 value_buf[4];
 996
 997         DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
 998
 999         target_buffer_set_u32(target, value_buf, value);
1000         if ((retval = target->type->write_memory(target, address, 4, 1, value_buf)) != ERROR_OK)
1001         {
1002                 DEBUG("failed: %i", retval);
1003         }
1004
1005         return retval;
1006 }
1007
1008 int target_write_u16(struct target_s *target, u32 address, u16 value)
1009 {
1010         int retval;
1011         u8 value_buf[2];
1012
1013         DEBUG("address: 0x%8.8x, value: 0x%8.8x", address, value);
1014
1015         target_buffer_set_u16(target, value_buf, value);
1016         if ((retval = target->type->write_memory(target, address, 2, 1, value_buf)) != ERROR_OK)
1017         {
1018                 DEBUG("failed: %i", retval);
1019         }
1020
1021         return retval;
1022 }
1023
1024 int target_write_u8(struct target_s *target, u32 address, u8 value)
1025 {
1026         int retval;
1027
1028         DEBUG("address: 0x%8.8x, value: 0x%2.2x", address, value);
1029
1030         if ((retval = target->type->read_memory(target, address, 1, 1, &value)) != ERROR_OK)
1031         {
1032                 DEBUG("failed: %i", retval);
1033         }
1034
1035         return retval;
1036 }
1037
1038 int target_register_user_commands(struct command_context_s *cmd_ctx)
1039 {
1040         register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, NULL);
1041         register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
1042         register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt [time (s)]");
1043         register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
1044         register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
1045         register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction from current PC or [addr]");
1046         register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init|run_and_halt|run_and_init]");
1047         register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
1048
1049         register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
1050         register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
1051         register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
1052
1053         register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value>");
1054         register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value>");
1055         register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value>");
1056
1057         register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
1058         register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
1059         register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
1060         register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
1061
1062         register_command(cmd_ctx,  NULL, "load_image", handle_load_image_command, COMMAND_EXEC, "load_image <file> <address> ['bin'|'ihex'|'elf'|'s19']");
1063         register_command(cmd_ctx,  NULL, "dump_image", handle_dump_image_command, COMMAND_EXEC, "dump_image <file> <address> <size>");
1064         register_command(cmd_ctx,  NULL, "verify_image", handle_verify_image_command, COMMAND_EXEC, "verify_image <file> [offset] [type]");
1065         register_command(cmd_ctx,  NULL, "load_binary", handle_load_image_command, COMMAND_EXEC, "[DEPRECATED] load_binary <file> <address>");
1066         register_command(cmd_ctx,  NULL, "dump_binary", handle_dump_image_command, COMMAND_EXEC, "[DEPRECATED] dump_binary <file> <address> <size>");
1067
1068         target_request_register_commands(cmd_ctx);
1069         trace_register_commands(cmd_ctx);
1070
1071         return ERROR_OK;
1072 }
1073
1074 int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1075 {
1076         target_t *target = targets;
1077         int count = 0;
1078
1079         if (argc == 1)
1080         {
1081                 int num = strtoul(args[0], NULL, 0);
1082
1083                 while (target)
1084                 {
1085                         count++;
1086                         target = target->next;
1087                 }
1088
1089                 if (num < count)
1090                         cmd_ctx->current_target = num;
1091                 else
1092                         command_print(cmd_ctx, "%i is out of bounds, only %i targets are configured", num, count);
1093
1094                 return ERROR_OK;
1095         }
1096
1097         while (target)
1098         {
1099                 command_print(cmd_ctx, "%i: %s (%s), state: %s", count++, target->type->name, target_endianess_strings[target->endianness], target_state_strings[target->state]);
1100                 target = target->next;
1101         }
1102
1103         return ERROR_OK;
1104 }
1105
1106 int handle_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1107 {
1108         int i;
1109         int found = 0;
1110
1111         if (argc < 3)
1112         {
1113                 ERROR("target command requires at least three arguments: <type> <endianess> <reset_mode>");
1114                 exit(-1);
1115         }
1116
1117         /* search for the specified target */
1118         if (args[0] && (args[0][0] != 0))
1119         {
1120                 for (i = 0; target_types[i]; i++)
1121                 {
1122                         if (strcmp(args[0], target_types[i]->name) == 0)
1123                         {
1124                                 target_t **last_target_p = &targets;
1125
1126                                 /* register target specific commands */
1127                                 if (target_types[i]->register_commands(cmd_ctx) != ERROR_OK)
1128                                 {
1129                                         ERROR("couldn't register '%s' commands", args[0]);
1130                                         exit(-1);
1131                                 }
1132
1133                                 if (*last_target_p)
1134                                 {
1135                                         while ((*last_target_p)->next)
1136                                                 last_target_p = &((*last_target_p)->next);
1137                                         last_target_p = &((*last_target_p)->next);
1138                                 }
1139
1140                                 *last_target_p = malloc(sizeof(target_t));
1141
1142                                 (*last_target_p)->type = target_types[i];
1143
1144                                 if (strcmp(args[1], "big") == 0)
1145                                         (*last_target_p)->endianness = TARGET_BIG_ENDIAN;
1146                                 else if (strcmp(args[1], "little") == 0)
1147                                         (*last_target_p)->endianness = TARGET_LITTLE_ENDIAN;
1148                                 else
1149                                 {
1150                                         ERROR("endianness must be either 'little' or 'big', not '%s'", args[1]);
1151                                         exit(-1);
1152                                 }
1153
1154                                 /* what to do on a target reset */
1155                                 if (strcmp(args[2], "reset_halt") == 0)
1156                                         (*last_target_p)->reset_mode = RESET_HALT;
1157                                 else if (strcmp(args[2], "reset_run") == 0)
1158                                         (*last_target_p)->reset_mode = RESET_RUN;
1159                                 else if (strcmp(args[2], "reset_init") == 0)
1160                                         (*last_target_p)->reset_mode = RESET_INIT;
1161                                 else if (strcmp(args[2], "run_and_halt") == 0)
1162                                         (*last_target_p)->reset_mode = RESET_RUN_AND_HALT;
1163                                 else if (strcmp(args[2], "run_and_init") == 0)
1164                                         (*last_target_p)->reset_mode = RESET_RUN_AND_INIT;
1165                                 else
1166                                 {
1167                                         ERROR("unknown target startup mode %s", args[2]);
1168                                         exit(-1);
1169                                 }
1170                                 (*last_target_p)->run_and_halt_time = 1000; /* default 1s */
1171
1172                                 (*last_target_p)->reset_script = NULL;
1173                                 (*last_target_p)->post_halt_script = NULL;
1174                                 (*last_target_p)->pre_resume_script = NULL;
1175                                 (*last_target_p)->gdb_program_script = NULL;
1176
1177                                 (*last_target_p)->working_area = 0x0;
1178                                 (*last_target_p)->working_area_size = 0x0;
1179                                 (*last_target_p)->working_areas = NULL;
1180                                 (*last_target_p)->backup_working_area = 0;
1181
1182                                 (*last_target_p)->state = TARGET_UNKNOWN;
1183                                 (*last_target_p)->debug_reason = DBG_REASON_UNDEFINED;
1184                                 (*last_target_p)->reg_cache = NULL;
1185                                 (*last_target_p)->breakpoints = NULL;
1186                                 (*last_target_p)->watchpoints = NULL;
1187                                 (*last_target_p)->next = NULL;
1188                                 (*last_target_p)->arch_info = NULL;
1189
1190                                 /* initialize trace information */
1191                                 (*last_target_p)->trace_info = malloc(sizeof(trace_t));
1192                                 (*last_target_p)->trace_info->num_trace_points = 0;
1193                                 (*last_target_p)->trace_info->trace_points_size = 0;
1194                                 (*last_target_p)->trace_info->trace_points = NULL;
1195                                 (*last_target_p)->trace_info->trace_history_size = 0;
1196                                 (*last_target_p)->trace_info->trace_history = NULL;
1197                                 (*last_target_p)->trace_info->trace_history_pos = 0;
1198                                 (*last_target_p)->trace_info->trace_history_overflowed = 0;
1199
1200                                 (*last_target_p)->dbgmsg = NULL;
1201                                 (*last_target_p)->dbg_msg_enabled = 0;
1202
1203                                 (*last_target_p)->type->target_command(cmd_ctx, cmd, args, argc, *last_target_p);
1204
1205                                 found = 1;
1206                                 break;
1207                         }
1208                 }
1209         }
1210
1211         /* no matching target found */
1212         if (!found)
1213         {
1214                 ERROR("target '%s' not found", args[0]);
1215                 exit(-1);
1216         }
1217
1218         return ERROR_OK;
1219 }
1220
1221 /* usage: target_script <target#> <event> <script_file> */
1222 int handle_target_script_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1223 {
1224         target_t *target = NULL;
1225
1226         if (argc < 3)
1227         {
1228                 ERROR("incomplete target_script command");
1229                 exit(-1);
1230         }
1231
1232         target = get_target_by_num(strtoul(args[0], NULL, 0));
1233
1234         if (!target)
1235         {
1236                 ERROR("target number '%s' not defined", args[0]);
1237                 exit(-1);
1238         }
1239
1240         if (strcmp(args[1], "reset") == 0)
1241         {
1242                 if (target->reset_script)
1243                         free(target->reset_script);
1244                 target->reset_script = strdup(args[2]);
1245         }
1246         else if (strcmp(args[1], "post_halt") == 0)
1247         {
1248                 if (target->post_halt_script)
1249                         free(target->post_halt_script);
1250                 target->post_halt_script = strdup(args[2]);
1251         }
1252         else if (strcmp(args[1], "pre_resume") == 0)
1253         {
1254                 if (target->pre_resume_script)
1255                         free(target->pre_resume_script);
1256                 target->pre_resume_script = strdup(args[2]);
1257         }
1258         else if (strcmp(args[1], "gdb_program_config") == 0)
1259         {
1260                 if (target->gdb_program_script)
1261                         free(target->gdb_program_script);
1262                 target->gdb_program_script = strdup(args[2]);
1263         }
1264         else
1265         {
1266                 ERROR("unknown event type: '%s", args[1]);
1267                 exit(-1);
1268         }
1269
1270         return ERROR_OK;
1271 }
1272
1273 int handle_run_and_halt_time_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1274 {
1275         target_t *target = NULL;
1276
1277         if (argc < 2)
1278         {
1279                 ERROR("incomplete run_and_halt_time command");
1280                 exit(-1);
1281         }
1282
1283         target = get_target_by_num(strtoul(args[0], NULL, 0));
1284
1285         if (!target)
1286         {
1287                 ERROR("target number '%s' not defined", args[0]);
1288                 exit(-1);
1289         }
1290
1291         target->run_and_halt_time = strtoul(args[1], NULL, 0);
1292
1293         return ERROR_OK;
1294 }
1295
1296 int handle_working_area_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1297 {
1298         target_t *target = NULL;
1299
1300         if ((argc < 4) || (argc > 5))
1301         {
1302                 return ERROR_COMMAND_SYNTAX_ERROR;
1303         }
1304
1305         target = get_target_by_num(strtoul(args[0], NULL, 0));
1306
1307         if (!target)
1308         {
1309                 ERROR("target number '%s' not defined", args[0]);
1310                 exit(-1);
1311         }
1312         target_free_all_working_areas(target);
1313
1314         target->working_area_phys = target->working_area_virt = strtoul(args[1], NULL, 0);
1315         if (argc == 5)
1316         {
1317                 target->working_area_virt = strtoul(args[4], NULL, 0);
1318         }
1319         target->working_area_size = strtoul(args[2], NULL, 0);
1320
1321         if (strcmp(args[3], "backup") == 0)
1322         {
1323                 target->backup_working_area = 1;
1324         }
1325         else if (strcmp(args[3], "nobackup") == 0)
1326         {
1327                 target->backup_working_area = 0;
1328         }
1329         else
1330         {
1331                 ERROR("unrecognized <backup|nobackup> argument (%s)", args[3]);
1332                 return ERROR_COMMAND_SYNTAX_ERROR;
1333         }
1334
1335         return ERROR_OK;
1336 }
1337
1338
1339 /* process target state changes */
1340 int handle_target(void *priv)
1341 {
1342         int retval;
1343         target_t *target = targets;
1344
1345         while (target)
1346         {
1347                 /* only poll if target isn't already halted */
1348                 if (target->state != TARGET_HALTED)
1349                 {
1350                         if (target_continous_poll)
1351                                 if ((retval = target->type->poll(target)) != ERROR_OK)
1352                                 {
1353                                         ERROR("couldn't poll target(%d). It's due for a reset.", retval);
1354                                 }
1355                 }
1356
1357                 target = target->next;
1358         }
1359
1360         return ERROR_OK;
1361 }
1362
1363 int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1364 {
1365         target_t *target;
1366         reg_t *reg = NULL;
1367         int count = 0;
1368         char *value;
1369
1370         DEBUG("-");
1371
1372         target = get_current_target(cmd_ctx);
1373
1374         /* list all available registers for the current target */
1375         if (argc == 0)
1376         {
1377                 reg_cache_t *cache = target->reg_cache;
1378
1379                 count = 0;
1380                 while(cache)
1381                 {
1382                         int i;
1383                         for (i = 0; i < cache->num_regs; i++)
1384                         {
1385                                 value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
1386                                 command_print(cmd_ctx, "(%i) %s (/%i): 0x%s (dirty: %i, valid: %i)", count++, cache->reg_list[i].name, cache->reg_list[i].size, value, cache->reg_list[i].dirty, cache->reg_list[i].valid);
1387                                 free(value);
1388                         }
1389                         cache = cache->next;
1390                 }
1391
1392                 return ERROR_OK;
1393         }
1394
1395         /* access a single register by its ordinal number */
1396         if ((args[0][0] >= '0') && (args[0][0] <= '9'))
1397         {
1398                 int num = strtoul(args[0], NULL, 0);
1399                 reg_cache_t *cache = target->reg_cache;
1400
1401                 count = 0;
1402                 while(cache)
1403                 {
1404                         int i;
1405                         for (i = 0; i < cache->num_regs; i++)
1406                         {
1407                                 if (count++ == num)
1408                                 {
1409                                         reg = &cache->reg_list[i];
1410                                         break;
1411                                 }
1412                         }
1413                         if (reg)
1414                                 break;
1415                         cache = cache->next;
1416                 }
1417
1418                 if (!reg)
1419                 {
1420                         command_print(cmd_ctx, "%i is out of bounds, the current target has only %i registers (0 - %i)", num, count, count - 1);
1421                         return ERROR_OK;
1422                 }
1423         } else /* access a single register by its name */
1424         {
1425                 reg = register_get_by_name(target->reg_cache, args[0], 1);
1426
1427                 if (!reg)
1428                 {
1429                         command_print(cmd_ctx, "register %s not found in current target", args[0]);
1430                         return ERROR_OK;
1431                 }
1432         }
1433
1434         /* display a register */
1435         if ((argc == 1) || ((argc == 2) && !((args[1][0] >= '0') && (args[1][0] <= '9'))))
1436         {
1437                 if ((argc == 2) && (strcmp(args[1], "force") == 0))
1438                         reg->valid = 0;
1439
1440                 if (reg->valid == 0)
1441                 {
1442                         reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1443                         if (arch_type == NULL)
1444                         {
1445                                 ERROR("BUG: encountered unregistered arch type");
1446                                 return ERROR_OK;
1447                         }
1448                         arch_type->get(reg);
1449                 }
1450                 value = buf_to_str(reg->value, reg->size, 16);
1451                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1452                 free(value);
1453                 return ERROR_OK;
1454         }
1455
1456         /* set register value */
1457         if (argc == 2)
1458         {
1459                 u8 *buf = malloc(CEIL(reg->size, 8));
1460                 str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
1461
1462                 reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
1463                 if (arch_type == NULL)
1464                 {
1465                         ERROR("BUG: encountered unregistered arch type");
1466                         return ERROR_OK;
1467                 }
1468
1469                 arch_type->set(reg, buf);
1470
1471                 value = buf_to_str(reg->value, reg->size, 16);
1472                 command_print(cmd_ctx, "%s (/%i): 0x%s", reg->name, reg->size, value);
1473                 free(value);
1474
1475                 free(buf);
1476
1477                 return ERROR_OK;
1478         }
1479
1480         command_print(cmd_ctx, "usage: reg <#|name> [value]");
1481
1482         return ERROR_OK;
1483 }
1484
1485 static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms);
1486
1487 int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1488 {
1489         target_t *target = get_current_target(cmd_ctx);
1490
1491         if (argc == 0)
1492         {
1493                 target->type->poll(target);
1494                         target_arch_state(target);
1495         }
1496         else
1497         {
1498                 if (strcmp(args[0], "on") == 0)
1499                 {
1500                         target_continous_poll = 1;
1501                 }
1502                 else if (strcmp(args[0], "off") == 0)
1503                 {
1504                         target_continous_poll = 0;
1505                 }
1506                 else
1507                 {
1508                         command_print(cmd_ctx, "arg is \"on\" or \"off\"");
1509                 }
1510         }
1511
1512
1513         return ERROR_OK;
1514 }
1515
1516 int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1517 {
1518         int ms = 5000;
1519
1520         if (argc > 0)
1521         {
1522                 char *end;
1523
1524                 ms = strtoul(args[0], &end, 0) * 1000;
1525                 if (*end)
1526                 {
1527                         command_print(cmd_ctx, "usage: %s [seconds]", cmd);
1528                         return ERROR_OK;
1529                 }
1530         }
1531
1532         return wait_state(cmd_ctx, cmd, TARGET_HALTED, ms);
1533 }
1534
1535 static void target_process_events(struct command_context_s *cmd_ctx)
1536 {
1537         target_t *target = get_current_target(cmd_ctx);
1538         target->type->poll(target);
1539         target_call_timer_callbacks();
1540 }
1541
1542 static int wait_state(struct command_context_s *cmd_ctx, char *cmd, enum target_state state, int ms)
1543 {
1544         int retval;
1545         struct timeval timeout, now;
1546         int once=1;
1547         gettimeofday(&timeout, NULL);
1548         timeval_add_time(&timeout, 0, ms * 1000);
1549
1550         target_t *target = get_current_target(cmd_ctx);
1551         for (;;)
1552         {
1553                 if ((retval=target->type->poll(target))!=ERROR_OK)
1554                         return retval;
1555                 target_call_timer_callbacks();
1556                 if (target->state == state)
1557                 {
1558                         break;
1559                 }
1560                 if (once)
1561                 {
1562                         once=0;
1563                         command_print(cmd_ctx, "waiting for target %s...", target_state_strings[state]);
1564                 }
1565
1566                 gettimeofday(&now, NULL);
1567                 if ((now.tv_sec > timeout.tv_sec) || ((now.tv_sec == timeout.tv_sec) && (now.tv_usec >= timeout.tv_usec)))
1568                 {
1569                         ERROR("timed out while waiting for target %s", target_state_strings[state]);
1570                         break;
1571                 }
1572         }
1573
1574         return ERROR_OK;
1575 }
1576
1577 int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1578 {
1579         int retval;
1580         target_t *target = get_current_target(cmd_ctx);
1581
1582         DEBUG("-");
1583
1584         if ((retval = target->type->halt(target)) != ERROR_OK)
1585                 {
1586                                 return retval;
1587                 }
1588
1589         return handle_wait_halt_command(cmd_ctx, cmd, args, argc);
1590 }
1591
1592 /* what to do on daemon startup */
1593 int handle_daemon_startup_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1594 {
1595         if (argc == 1)
1596         {
1597                 if (strcmp(args[0], "attach") == 0)
1598                 {
1599                         startup_mode = DAEMON_ATTACH;
1600                         return ERROR_OK;
1601                 }
1602                 else if (strcmp(args[0], "reset") == 0)
1603                 {
1604                         startup_mode = DAEMON_RESET;
1605                         return ERROR_OK;
1606                 }
1607         }
1608
1609         WARNING("invalid daemon_startup configuration directive: %s", args[0]);
1610         return ERROR_OK;
1611
1612 }
1613
1614 int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1615 {
1616         target_t *target = get_current_target(cmd_ctx);
1617         int retval;
1618
1619         command_print(cmd_ctx, "requesting target halt and executing a soft reset");
1620
1621         if ((retval = target->type->soft_reset_halt(target)) != ERROR_OK)
1622         {
1623                 switch (retval)
1624                 {
1625                         case ERROR_TARGET_TIMEOUT:
1626                                 command_print(cmd_ctx, "target timed out... shutting down");
1627                                 exit(-1);
1628                         default:
1629                                 command_print(cmd_ctx, "unknown error... shutting down");
1630                                 exit(-1);
1631                 }
1632         }
1633
1634         return ERROR_OK;
1635 }
1636
1637 int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1638 {
1639         target_t *target = get_current_target(cmd_ctx);
1640         enum target_reset_mode reset_mode = target->reset_mode;
1641         enum target_reset_mode save = target->reset_mode;
1642
1643         DEBUG("-");
1644
1645         if (argc >= 1)
1646         {
1647                 if (strcmp("run", args[0]) == 0)
1648                         reset_mode = RESET_RUN;
1649                 else if (strcmp("halt", args[0]) == 0)
1650                         reset_mode = RESET_HALT;
1651                 else if (strcmp("init", args[0]) == 0)
1652                         reset_mode = RESET_INIT;
1653                 else if (strcmp("run_and_halt", args[0]) == 0)
1654                 {
1655                         reset_mode = RESET_RUN_AND_HALT;
1656                         if (argc >= 2)
1657                         {
1658                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1659                         }
1660                 }
1661                 else if (strcmp("run_and_init", args[0]) == 0)
1662                 {
1663                         reset_mode = RESET_RUN_AND_INIT;
1664                         if (argc >= 2)
1665                         {
1666                                 target->run_and_halt_time = strtoul(args[1], NULL, 0);
1667                         }
1668                 }
1669                 else
1670                 {
1671                         command_print(cmd_ctx, "usage: reset ['run', 'halt', 'init', 'run_and_halt', 'run_and_init]");
1672                         return ERROR_OK;
1673                 }
1674         }
1675
1676         /* temporarily modify mode of current reset target */
1677         target->reset_mode = reset_mode;
1678
1679         /* reset *all* targets */
1680         target_process_reset(cmd_ctx);
1681
1682         /* Restore default reset mode for this target */
1683     target->reset_mode = save;
1684
1685         return ERROR_OK;
1686 }
1687
1688 int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1689 {
1690         int retval;
1691         target_t *target = get_current_target(cmd_ctx);
1692
1693         if (argc == 0)
1694                 retval = target->type->resume(target, 1, 0, 1, 0); /* current pc, addr = 0, handle breakpoints, not debugging */
1695         else if (argc == 1)
1696                 retval = target->type->resume(target, 0, strtoul(args[0], NULL, 0), 1, 0); /* addr = args[0], handle breakpoints, not debugging */
1697         else
1698         {
1699                 return ERROR_COMMAND_SYNTAX_ERROR;
1700         }
1701
1702         target_process_events(cmd_ctx);
1703
1704         return retval;
1705 }
1706
1707 int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1708 {
1709         target_t *target = get_current_target(cmd_ctx);
1710
1711         DEBUG("-");
1712
1713         if (argc == 0)
1714                 target->type->step(target, 1, 0, 1); /* current pc, addr = 0, handle breakpoints */
1715
1716         if (argc == 1)
1717                 target->type->step(target, 0, strtoul(args[0], NULL, 0), 1); /* addr = args[0], handle breakpoints */
1718
1719         return ERROR_OK;
1720 }
1721
1722 int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1723 {
1724         const int line_bytecnt = 32;
1725         int count = 1;
1726         int size = 4;
1727         u32 address = 0;
1728         int line_modulo;
1729         int i;
1730
1731         char output[128];
1732         int output_len;
1733
1734         int retval;
1735
1736         u8 *buffer;
1737         target_t *target = get_current_target(cmd_ctx);
1738
1739         if (argc < 1)
1740                 return ERROR_OK;
1741
1742         if (argc == 2)
1743                 count = strtoul(args[1], NULL, 0);
1744
1745         address = strtoul(args[0], NULL, 0);
1746
1747
1748         switch (cmd[2])
1749         {
1750                 case 'w':
1751                         size = 4; line_modulo = line_bytecnt / 4;
1752                         break;
1753                 case 'h':
1754                         size = 2; line_modulo = line_bytecnt / 2;
1755                         break;
1756                 case 'b':
1757                         size = 1; line_modulo = line_bytecnt / 1;
1758                         break;
1759                 default:
1760                         return ERROR_OK;
1761         }
1762
1763         buffer = calloc(count, size);
1764         retval  = target->type->read_memory(target, address, size, count, buffer);
1765         if (retval != ERROR_OK)
1766         {
1767                 switch (retval)
1768                 {
1769                         case ERROR_TARGET_UNALIGNED_ACCESS:
1770                                 command_print(cmd_ctx, "error: address not aligned");
1771                                 break;
1772                         case ERROR_TARGET_NOT_HALTED:
1773                                 command_print(cmd_ctx, "error: target must be halted for memory accesses");
1774                                 break;
1775                         case ERROR_TARGET_DATA_ABORT:
1776                                 command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1777                                 break;
1778                         default:
1779                                 command_print(cmd_ctx, "error: unknown error");
1780                                 break;
1781                 }
1782                 return ERROR_OK;
1783         }
1784
1785         output_len = 0;
1786
1787         for (i = 0; i < count; i++)
1788         {
1789                 if (i%line_modulo == 0)
1790                         output_len += snprintf(output + output_len, 128 - output_len, "0x%8.8x: ", address + (i*size));
1791
1792                 switch (size)
1793                 {
1794                         case 4:
1795                                 output_len += snprintf(output + output_len, 128 - output_len, "%8.8x ", target_buffer_get_u32(target, &buffer[i*4]));
1796                                 break;
1797                         case 2:
1798                                 output_len += snprintf(output + output_len, 128 - output_len, "%4.4x ", target_buffer_get_u16(target, &buffer[i*2]));
1799                                 break;
1800                         case 1:
1801                                 output_len += snprintf(output + output_len, 128 - output_len, "%2.2x ", buffer[i*1]);
1802                                 break;
1803                 }
1804
1805                 if ((i%line_modulo == line_modulo-1) || (i == count - 1))
1806                 {
1807                         command_print(cmd_ctx, output);
1808                         output_len = 0;
1809                 }
1810         }
1811
1812         free(buffer);
1813
1814         return ERROR_OK;
1815 }
1816
1817 int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1818 {
1819         u32 address = 0;
1820         u32 value = 0;
1821         int retval;
1822         target_t *target = get_current_target(cmd_ctx);
1823         u8 value_buf[4];
1824
1825         if (argc < 2)
1826                 return ERROR_OK;
1827
1828         address = strtoul(args[0], NULL, 0);
1829         value = strtoul(args[1], NULL, 0);
1830
1831         switch (cmd[2])
1832         {
1833                 case 'w':
1834                         target_buffer_set_u32(target, value_buf, value);
1835                         retval = target->type->write_memory(target, address, 4, 1, value_buf);
1836                         break;
1837                 case 'h':
1838                         target_buffer_set_u16(target, value_buf, value);
1839                         retval = target->type->write_memory(target, address, 2, 1, value_buf);
1840                         break;
1841                 case 'b':
1842                         value_buf[0] = value;
1843                         retval = target->type->write_memory(target, address, 1, 1, value_buf);
1844                         break;
1845                 default:
1846                         return ERROR_OK;
1847         }
1848
1849         switch (retval)
1850         {
1851                 case ERROR_TARGET_UNALIGNED_ACCESS:
1852                         command_print(cmd_ctx, "error: address not aligned");
1853                         break;
1854                 case ERROR_TARGET_DATA_ABORT:
1855                         command_print(cmd_ctx, "error: access caused data abort, system possibly corrupted");
1856                         break;
1857                 case ERROR_TARGET_NOT_HALTED:
1858                         command_print(cmd_ctx, "error: target must be halted for memory accesses");
1859                         break;
1860                 case ERROR_OK:
1861                         break;
1862                 default:
1863                         command_print(cmd_ctx, "error: unknown error");
1864                         break;
1865         }
1866
1867         return ERROR_OK;
1868
1869 }
1870
1871 int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1872 {
1873         u8 *buffer;
1874         u32 buf_cnt;
1875         u32 image_size;
1876         int i;
1877         int retval;
1878
1879         image_t image;
1880
1881         duration_t duration;
1882         char *duration_text;
1883
1884         target_t *target = get_current_target(cmd_ctx);
1885
1886         if (argc < 1)
1887         {
1888                 command_print(cmd_ctx, "usage: load_image <filename> [address] [type]");
1889                 return ERROR_OK;
1890         }
1891
1892         /* a base address isn't always necessary, default to 0x0 (i.e. don't relocate) */
1893         if (argc >= 2)
1894         {
1895                 image.base_address_set = 1;
1896                 image.base_address = strtoul(args[1], NULL, 0);
1897         }
1898         else
1899         {
1900                 image.base_address_set = 0;
1901         }
1902
1903         image.start_address_set = 0;
1904
1905         duration_start_measure(&duration);
1906
1907         if (image_open(&image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
1908         {
1909                 return ERROR_OK;
1910         }
1911
1912         image_size = 0x0;
1913         for (i = 0; i < image.num_sections; i++)
1914         {
1915                 buffer = malloc(image.sections[i].size);
1916                 if (buffer == NULL)
1917                 {
1918                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
1919                         break;
1920                 }
1921
1922                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
1923                 {
1924                         ERROR("image_read_section failed with error code: %i", retval);
1925                         command_print(cmd_ctx, "image reading failed, download aborted");
1926                         free(buffer);
1927                         image_close(&image);
1928                         return ERROR_OK;
1929                 }
1930                 target_write_buffer(target, image.sections[i].base_address, buf_cnt, buffer);
1931                 image_size += buf_cnt;
1932                 command_print(cmd_ctx, "%u byte written at address 0x%8.8x", buf_cnt, image.sections[i].base_address);
1933
1934                 free(buffer);
1935         }
1936
1937         duration_stop_measure(&duration, &duration_text);
1938         command_print(cmd_ctx, "downloaded %u byte in %s", image_size, duration_text);
1939         free(duration_text);
1940
1941         image_close(&image);
1942
1943         return ERROR_OK;
1944
1945 }
1946
1947 int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
1948 {
1949         fileio_t fileio;
1950
1951         u32 address;
1952         u32 size;
1953         u8 buffer[560];
1954         int retval;
1955
1956         duration_t duration;
1957         char *duration_text;
1958
1959         target_t *target = get_current_target(cmd_ctx);
1960
1961         if (argc != 3)
1962         {
1963                 command_print(cmd_ctx, "usage: dump_image <filename> <address> <size>");
1964                 return ERROR_OK;
1965         }
1966
1967         address = strtoul(args[1], NULL, 0);
1968         size = strtoul(args[2], NULL, 0);
1969
1970         if ((address & 3) || (size & 3))
1971         {
1972                 command_print(cmd_ctx, "only 32-bit aligned address and size are supported");
1973                 return ERROR_OK;
1974         }
1975
1976         if (fileio_open(&fileio, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
1977         {
1978                 return ERROR_OK;
1979         }
1980
1981         duration_start_measure(&duration);
1982
1983         while (size > 0)
1984         {
1985                 u32 size_written;
1986                 u32 this_run_size = (size > 560) ? 560 : size;
1987
1988                 retval = target->type->read_memory(target, address, 4, this_run_size / 4, buffer);
1989                 if (retval != ERROR_OK)
1990                 {
1991                         command_print(cmd_ctx, "Reading memory failed %d", retval);
1992                         break;
1993                 }
1994
1995                 fileio_write(&fileio, this_run_size, buffer, &size_written);
1996
1997                 size -= this_run_size;
1998                 address += this_run_size;
1999         }
2000
2001         fileio_close(&fileio);
2002
2003         duration_stop_measure(&duration, &duration_text);
2004         command_print(cmd_ctx, "dumped %"PRIi64" byte in %s", fileio.size, duration_text);
2005         free(duration_text);
2006
2007         return ERROR_OK;
2008 }
2009
2010 int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2011 {
2012         u8 *buffer;
2013         u32 buf_cnt;
2014         u32 image_size;
2015         int i;
2016         int retval;
2017         u32 checksum = 0;
2018         u32 mem_checksum = 0;
2019
2020         image_t image;
2021
2022         duration_t duration;
2023         char *duration_text;
2024
2025         target_t *target = get_current_target(cmd_ctx);
2026
2027         if (argc < 1)
2028         {
2029                 command_print(cmd_ctx, "usage: verify_image <file> [offset] [type]");
2030                 return ERROR_OK;
2031         }
2032
2033         if (!target)
2034         {
2035                 ERROR("no target selected");
2036                 return ERROR_OK;
2037         }
2038
2039         duration_start_measure(&duration);
2040
2041         if (argc >= 2)
2042         {
2043                 image.base_address_set = 1;
2044                 image.base_address = strtoul(args[1], NULL, 0);
2045         }
2046         else
2047         {
2048                 image.base_address_set = 0;
2049                 image.base_address = 0x0;
2050         }
2051
2052         image.start_address_set = 0;
2053
2054         if (image_open(&image, args[0], (argc == 3) ? args[2] : NULL) != ERROR_OK)
2055         {
2056                 return ERROR_OK;
2057         }
2058
2059         image_size = 0x0;
2060         for (i = 0; i < image.num_sections; i++)
2061         {
2062                 buffer = malloc(image.sections[i].size);
2063                 if (buffer == NULL)
2064                 {
2065                         command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", image.sections[i].size);
2066                         break;
2067                 }
2068                 if ((retval = image_read_section(&image, i, 0x0, image.sections[i].size, buffer, &buf_cnt)) != ERROR_OK)
2069                 {
2070                         ERROR("image_read_section failed with error code: %i", retval);
2071                         command_print(cmd_ctx, "image reading failed, verify aborted");
2072                         free(buffer);
2073                         image_close(&image);
2074                         return ERROR_OK;
2075                 }
2076
2077                 /* calculate checksum of image */
2078                 image_calculate_checksum( buffer, buf_cnt, &checksum );
2079
2080                 retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
2081
2082                 if( retval != ERROR_OK )
2083                 {
2084                         command_print(cmd_ctx, "could not calculate checksum, verify aborted");
2085                         free(buffer);
2086                         image_close(&image);
2087                         return ERROR_OK;
2088                 }
2089
2090                 if( checksum != mem_checksum )
2091                 {
2092                         /* failed crc checksum, fall back to a binary compare */
2093                         u8 *data;
2094
2095                         command_print(cmd_ctx, "checksum mismatch - attempting binary compare");
2096
2097                         data = (u8*)malloc(buf_cnt);
2098
2099                         /* Can we use 32bit word accesses? */
2100                         int size = 1;
2101                         int count = buf_cnt;
2102                         if ((count % 4) == 0)
2103                         {
2104                                 size *= 4;
2105                                 count /= 4;
2106                         }
2107                         retval = target->type->read_memory(target, image.sections[i].base_address, size, count, data);
2108
2109                         if (retval == ERROR_OK)
2110                         {
2111                                 int t;
2112                                 for (t = 0; t < buf_cnt; t++)
2113                                 {
2114                                         if (data[t] != buffer[t])
2115                                         {
2116                                                 command_print(cmd_ctx, "Verify operation failed address 0x%08x. Was 0x%02x instead of 0x%02x\n", t + image.sections[i].base_address, data[t], buffer[t]);
2117                                                 free(data);
2118                                                 free(buffer);
2119                                                 image_close(&image);
2120                                                 return ERROR_OK;
2121                                         }
2122                                 }
2123                         }
2124
2125                         free(data);
2126                 }
2127
2128                 free(buffer);
2129                 image_size += buf_cnt;
2130         }
2131
2132         duration_stop_measure(&duration, &duration_text);
2133         command_print(cmd_ctx, "verified %u bytes in %s", image_size, duration_text);
2134         free(duration_text);
2135
2136         image_close(&image);
2137
2138         return ERROR_OK;
2139 }
2140
2141 int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2142 {
2143         int retval;
2144         target_t *target = get_current_target(cmd_ctx);
2145
2146         if (argc == 0)
2147         {
2148                 breakpoint_t *breakpoint = target->breakpoints;
2149
2150                 while (breakpoint)
2151                 {
2152                         if (breakpoint->type == BKPT_SOFT)
2153                         {
2154                                 char* buf = buf_to_str(breakpoint->orig_instr, breakpoint->length, 16);
2155                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i, 0x%s", breakpoint->address, breakpoint->length, breakpoint->set, buf);
2156                                 free(buf);
2157                         }
2158                         else
2159                         {
2160                                 command_print(cmd_ctx, "0x%8.8x, 0x%x, %i", breakpoint->address, breakpoint->length, breakpoint->set);
2161                         }
2162                         breakpoint = breakpoint->next;
2163                 }
2164         }
2165         else if (argc >= 2)
2166         {
2167                 int hw = BKPT_SOFT;
2168                 u32 length = 0;
2169
2170                 length = strtoul(args[1], NULL, 0);
2171
2172                 if (argc >= 3)
2173                         if (strcmp(args[2], "hw") == 0)
2174                                 hw = BKPT_HARD;
2175
2176                 if ((retval = breakpoint_add(target, strtoul(args[0], NULL, 0), length, hw)) != ERROR_OK)
2177                 {
2178                         switch (retval)
2179                         {
2180                                 case ERROR_TARGET_NOT_HALTED:
2181                                         command_print(cmd_ctx, "target must be halted to set breakpoints");
2182                                         break;
2183                                 case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
2184                                         command_print(cmd_ctx, "no more breakpoints available");
2185                                         break;
2186                                 default:
2187                                         command_print(cmd_ctx, "unknown error, breakpoint not set");
2188                                         break;
2189                         }
2190                 }
2191                 else
2192                 {
2193                         command_print(cmd_ctx, "breakpoint added at address 0x%8.8x", strtoul(args[0], NULL, 0));
2194                 }
2195         }
2196         else
2197         {
2198                 command_print(cmd_ctx, "usage: bp <address> <length> ['hw']");
2199         }
2200
2201         return ERROR_OK;
2202 }
2203
2204 int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2205 {
2206         target_t *target = get_current_target(cmd_ctx);
2207
2208         if (argc > 0)
2209                 breakpoint_remove(target, strtoul(args[0], NULL, 0));
2210
2211         return ERROR_OK;
2212 }
2213
2214 int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2215 {
2216         target_t *target = get_current_target(cmd_ctx);
2217         int retval;
2218
2219         if (argc == 0)
2220         {
2221                 watchpoint_t *watchpoint = target->watchpoints;
2222
2223                 while (watchpoint)
2224                 {
2225                         command_print(cmd_ctx, "address: 0x%8.8x, mask: 0x%8.8x, r/w/a: %i, value: 0x%8.8x, mask: 0x%8.8x", watchpoint->address, watchpoint->length, watchpoint->rw, watchpoint->value, watchpoint->mask);
2226                         watchpoint = watchpoint->next;
2227                 }
2228         }
2229         else if (argc >= 2)
2230         {
2231                 enum watchpoint_rw type = WPT_ACCESS;
2232                 u32 data_value = 0x0;
2233                 u32 data_mask = 0xffffffff;
2234
2235                 if (argc >= 3)
2236                 {
2237                         switch(args[2][0])
2238                         {
2239                                 case 'r':
2240                                         type = WPT_READ;
2241                                         break;
2242                                 case 'w':
2243                                         type = WPT_WRITE;
2244                                         break;
2245                                 case 'a':
2246                                         type = WPT_ACCESS;
2247                                         break;
2248                                 default:
2249                                         command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2250                                         return ERROR_OK;
2251                         }
2252                 }
2253                 if (argc >= 4)
2254                 {
2255                         data_value = strtoul(args[3], NULL, 0);
2256                 }
2257                 if (argc >= 5)
2258                 {
2259                         data_mask = strtoul(args[4], NULL, 0);
2260                 }
2261
2262                 if ((retval = watchpoint_add(target, strtoul(args[0], NULL, 0),
2263                                 strtoul(args[1], NULL, 0), type, data_value, data_mask)) != ERROR_OK)
2264                 {
2265                         switch (retval)
2266                         {
2267                                 case ERROR_TARGET_NOT_HALTED:
2268                                         command_print(cmd_ctx, "target must be halted to set watchpoints");
2269                                         break;
2270                                 case ERROR_TARGET_RESOURCE_NOT_AVAILABLE:
2271                                         command_print(cmd_ctx, "no more watchpoints available");
2272                                         break;
2273                                 default:
2274                                         command_print(cmd_ctx, "unknown error, watchpoint not set");
2275                                         break;
2276                         }
2277                 }
2278         }
2279         else
2280         {
2281                 command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
2282         }
2283
2284         return ERROR_OK;
2285 }
2286
2287 int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
2288 {
2289         target_t *target = get_current_target(cmd_ctx);
2290
2291         if (argc > 0)
2292                 watchpoint_remove(target, strtoul(args[0], NULL, 0));
2293
2294         return ERROR_OK;
2295 }
2296
2297 int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
2298 {
2299         int retval;
2300         target_t *target = get_current_target(cmd_ctx);
2301         u32 va;
2302         u32 pa;
2303
2304         if (argc != 1)
2305         {
2306                 return ERROR_COMMAND_SYNTAX_ERROR;
2307         }
2308         va = strtoul(args[0], NULL, 0);
2309
2310         retval = target->type->virt2phys(target, va, &pa);
2311         if (retval == ERROR_OK)
2312         {
2313                 command_print(cmd_ctx, "Physical address 0x%08x", pa);
2314         }
2315         else
2316         {
2317                 /* lower levels will have logged a detailed error which is
2318                  * forwarded to telnet/GDB session.
2319                  */
2320         }
2321         return retval;
2322 }